HOME VULNERABILITIESCVE-2016-10034

CRITICALPOC

CVE-2016-10034

CWE-77Published: December 30, 2016· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

The setFrom function in the Sendmail adapter in the zend-mail component before 2.4.11, 2.5.x, 2.6.x, and 2.7.x before 2.7.2, and Zend Framework before 2.4.11 might allow remote attackers to pass extra parameters to the mail command and consequently execute arbitrary code via a \" (backslash double quote) in a crafted e-mail address.

Technical Analysis

CVE-2016-10034 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

A proof-of-concept (PoC) exploit exists for CVE-2016-10034. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.None

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

zend2 product(s)

zend frameworkzend-mail

Source: NVD CPE · 10 total CPE entries

Exploit & PoC Resources

POC AVAILABLEProof-of-concept code exists

Offensive Security exploit database

GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

Metasploit module search

Security advisories & exploits

Official NIST entry

CVE Program entry

External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://www.securityfocus.com/bid/95144

ADVISORYhttps://framework.zend.com/security/advisory/ZF2016-04

ADVISORYhttps://legalhackers.com/advisories/ZendFramework-Exploit-ZendMail-Remote-Code-Exec-CVE-2016-10034-Vuln.html

ADVISORYhttp://www.securityfocus.com/bid/95144

ADVISORYhttps://framework.zend.com/security/advisory/ZF2016-04

ADVISORYhttps://legalhackers.com/advisories/ZendFramework-Exploit-ZendMail-Remote-Code-Exec-CVE-2016-10034-Vuln.html

All References (16)

→

http://www.securityfocus.com/bid/95144Third Party Advisory · VDB Entry

→

http://www.securitytracker.com/id/1037539

→

https://framework.zend.com/security/advisory/ZF2016-04Exploit · Technical Description · Vendor Advisory

→

https://legalhackers.com/advisories/ZendFramework-Exploit-ZendMail-Remote-Code-Exec-CVE-2016-10034-Vuln.htmlExploit · Technical Description · Third Party Advisory

→

https://security.gentoo.org/glsa/201804-10

→

https://www.exploit-db.com/exploits/40979/

→

https://www.exploit-db.com/exploits/40986/

→

https://www.exploit-db.com/exploits/42221/

→

http://www.securityfocus.com/bid/95144Third Party Advisory · VDB Entry

→

http://www.securitytracker.com/id/1037539

→

https://framework.zend.com/security/advisory/ZF2016-04Exploit · Technical Description · Vendor Advisory

→

https://legalhackers.com/advisories/ZendFramework-Exploit-ZendMail-Remote-Code-Exec-CVE-2016-10034-Vuln.htmlExploit · Technical Description · Third Party Advisory

→

https://security.gentoo.org/glsa/201804-10

→

https://www.exploit-db.com/exploits/40979/

→

https://www.exploit-db.com/exploits/40986/

Quick Facts

CVE IDCVE-2016-10034

CVSS Score9.8 / 10

SeverityCRITICAL

WeaknessCWE-77

CISA KEVNo

ExploitPOC

Affected1 vendor(s)

PublishedDec 30, 2016

Related CVEs (CWE-77)

Recommended Actions

→Apply vendor patches immediately
→Monitor CVE-2016-10034 in threat intel feeds
→Review IDS/IPS signatures for exploitation attempts

Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.

← All Vulnerabilities·Search for CVE-2016-10034·NVD